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Houghton Mifflin Harcourt Algebra 1, 2015

HM

Houghton Mifflin Harcourt Algebra 1, 2015 View details

1. Solving Equations

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Exercise 4 Page 7

Isolate x using inverse operations.

x=36

Practice makes perfect

To solve the equation, we need to isolate x using inverse operations and the Properties of the Equality.

1/3x + 9 = 21

LHS-9=RHS-9

1/3x + 9 - 9 = 21 - 9

Subtract terms

1/3x = 12

LHS * 3=RHS* 3

1/3x * 3 = 12 * 3

FracMultDenomToNumber

a/3* 3 = a

x = 12 * 3

Multiply

x = 36

Subchapter links

Explore p.5-8

Elaborate p.8

Evaluate: Homework and Practice p.8-10

Lesson Performance Task